diff options
| author | Chao Yu <chao2.yu@samsung.com> | 2016-02-24 17:20:44 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:33:08 +0200 |
| commit | 6353dc4ce9904de5b6017d6f8c5abb3282edb01f (patch) | |
| tree | 439564f9b699bd443b49a6ac62be95fc81c43df5 | |
| parent | 09635f3b8f7614254c0ce9f51a56cc0e29c4761d (diff) | |
f2fs: fix incorrect upper bound when iterating inode mapping tree
1. Inode mapping tree can index page in range of [0, ULONG_MAX], however,
in some places, f2fs only search or iterate page in ragne of [0, LONG_MAX],
result in miss hitting in page cache.
2. filemap_fdatawait_range accepts range parameters in unit of bytes, so
the max range it covers should be [0, LLONG_MAX], if we use [0, LONG_MAX]
as range for waiting on writeback, big number of pages will not be covered.
This patch corrects above two issues.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/f2fs/checkpoint.c | 8 | ||||
| -rw-r--r-- | fs/f2fs/file.c | 2 | ||||
| -rw-r--r-- | fs/f2fs/node.c | 4 |
3 files changed, 7 insertions, 7 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index b43999e7f..0f9666452 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -283,7 +283,7 @@ long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, long nr_to_write) { struct address_space *mapping = META_MAPPING(sbi); - pgoff_t index = 0, end = LONG_MAX, prev = LONG_MAX; + pgoff_t index = 0, end = ULONG_MAX, prev = ULONG_MAX; struct pagevec pvec; long nwritten = 0; struct writeback_control wbc = { @@ -306,7 +306,7 @@ long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, for (i = 0; i < nr_pages; i++) { struct page *page = pvec.pages[i]; - if (prev == LONG_MAX) + if (prev == ULONG_MAX) prev = page->index - 1; if (nr_to_write != LONG_MAX && page->index != prev + 1) { pagevec_release(&pvec); @@ -1078,8 +1078,8 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) if (unlikely(f2fs_cp_error(sbi))) return -EIO; - filemap_fdatawait_range(NODE_MAPPING(sbi), 0, LONG_MAX); - filemap_fdatawait_range(META_MAPPING(sbi), 0, LONG_MAX); + filemap_fdatawait_range(NODE_MAPPING(sbi), 0, LLONG_MAX); + filemap_fdatawait_range(META_MAPPING(sbi), 0, LLONG_MAX); /* update user_block_counts */ sbi->last_valid_block_count = sbi->total_valid_block_count; diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 1664577c6..4ab170a77 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -301,7 +301,7 @@ static pgoff_t __get_first_dirty_index(struct address_space *mapping, pagevec_init(&pvec, 0); nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs, PAGECACHE_TAG_DIRTY, 1); - pgofs = nr_pages ? pvec.pages[0]->index : LONG_MAX; + pgofs = nr_pages ? pvec.pages[0]->index : ULONG_MAX; pagevec_release(&pvec); return pgofs; } diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 8f823f39e..33dce31e7 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1238,7 +1238,7 @@ int sync_node_pages(struct f2fs_sb_info *sbi, nid_t ino, next_step: index = 0; - end = LONG_MAX; + end = ULONG_MAX; while (index <= end) { int i, nr_pages; @@ -1354,7 +1354,7 @@ continue_unlock: int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino) { - pgoff_t index = 0, end = LONG_MAX; + pgoff_t index = 0, end = ULONG_MAX; struct pagevec pvec; int ret2 = 0, ret = 0; |